Philippines (Republic) Bureau of Health Services. Division of Environmental Sanitation & University of the Philippines (Manila) Institute of Hygiene Department of Public Health. (1970). Field manual for sanitary inspectors ([Rev. ed.].). [s.n.].

Philippines (Republic) Bureau of Health Services. Division of Environmental Sanitation and University of the Philippines (Manila) Institute of Hygiene Department of Public Health. Field Manual for Sanitary Inspectors. [Rev. ed.]. Manila: [s.n.], 1970.

Philippines (Republic) Bureau of Health Services. Division of Environmental Sanitation and University of the Philippines (Manila) Institute of Hygiene Department of Public Health. Field Manual for Sanitary Inspectors. [Rev. ed.]. [s.n.], 1970.